Mechanical-hydraulic damper for a load subject to shocks and vib

Details Mechanical-hydraulic damper for a load subject to shocks and vib Mechanical-hydraulic damper for a load subject to shocks and vib

1978-03-14

1980-12-30

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Motion damped from condition detected outside of retarder

74 8915, 744248R, 92 31, 188290, 188292, 188322, F16D 5706

Patent

active

042418143

ABSTRACT:
A mechanical-hydraulic damper for a load which is subject to shocks and vibrations, comprising a co-operating pair of elements, the first of the pair of elements being mounted in a body for relative axial movement in relation to the body and the second of the pair of elements being rotatably mounted in the body and so coupled to the first element that relative axial movement of the first element causes rotation of the second element which is coupled to a hydraulic system which resists sudden or rapid rotation of the second element. The pair of co-operating elements may comprise a screw-nut assembly. The hydraulic system may comprise a reversible pump driven by the rotatable element and pumping hydraulic fluid round a closed circuit including a throttling orifice. Alternatively the hydraulic system may comprise a rotary laminar hydraulic damper filled with high viscosity oil.

REFERENCES:
patent: 465953 (1891-12-01), Stuck
patent: 1960089 (1934-05-01), Rabb
patent: 2106493 (1938-01-01), Byers
patent: 2532656 (1950-12-01), Backus, Jr. et al.
patent: 2688951 (1954-09-01), Sears
patent: 2724284 (1955-11-01), Anderson et al.
patent: 3501114 (1970-03-01), Plante
patent: 3756351 (1973-09-01), Sasaki
patent: 3824905 (1974-07-01), Jablonsky

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